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Patented Nov'. 3,1896.

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YPaitenfed Nov. 3, 1896.

UNITED STATES PATENT OFFICE.

OTTO GOSCHEL AND BENJAMIN SUTTER, OF ST. LOUIS, MISSOURI, ASSIGNORS OF ONE-THIRD TOI-IENRY MUSELMANN, OF SAME PLACE.

STREET-SWEEPER.

SPECIFICATION forming part of Letters Patent No. 570,749, dated November 3, 1896.

Application filed April 23, 1896. Serial No. 588,699. (No model.)

To all whom it may concern:

Be it known that we, OTTO GOSCHEL and BENJAMIN SUTTEE, citizens of the United States, residing at St. Louis, State of Missouri, have invented certain new and useful Improvements in Street-Sweepers, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.

Our invention has relation to improvements in street-sweepers; and it consists in the novel arrangement and combination of parts more fully set forth in the specification, and pointed out in the claims.

In the drawings, Figure 1 is a top plan View of the machine with parts of the bed thereof broken away, so as to expose4 the operating parts mounted below the same. Fig. 2 is a vertical section on the line ctaof Fig. 1. Fig. 3 is a detail end view of the upper end of the series of buckets, showing the dumping-receptacle in section. Fig. 4 is a section on line b b of Fig. 2. Fig. 5 is a side elevation of the revolvin g dirt-receiver and the lower end of the conveyer buckets cooperating therewith. Fig. 6 is a plan view of a series of brooms connected by universal joints. Fig. 7 is an enlarged detail plan view of one of the joints, and Fig. 8 is a section on line c c of Fig. 7.

The object of our invention is to construct a street-sweeper which will act as a self-loader and be capable of automatically delivering the dirt gathered up or swept thereby into a box or receptacle whence it can be conveniently dumped into a delivery-cart or other wagon.

The novelty of the present sweeper lies in the specific details of construction to be hereinafter set forth and denitely pointed out. It may be described as follows:

Referring to the drawings, 1 represents the bed of the machine-frame provided with a front wheel 2 and driving-wheels 3, the latter being keyed to the ends of the drive-shaft 4, mounted in suitable bearings 5 at the bottom of the bed. Keyed to the shaft 4, adjacent to each bearing 5, is a bevel gear-wheel or pinion 6, which meshes with abevel-pinion 7, carried at one end of a short shaft 8, mounted in a depending arm or bracket 9, the opposite end of the shaft being provided with a sprocketwheel 10, over which passes a sprocket-chain 11, adapted to drive the side broom or brush 12 by passing over a sprocket-wheel 13, carried at the inner end of the shaft 14 of said broom. The inner end of the shaft 14 finds a suitable bearing in and is embraced loosely by one end of a rigid arm 15, disposed adjacent to the chain 11, the opposite end of the arm embracing loosely the outer end of the short shaft 8, the said arm serving in addition to keep taut the said sprocket-chain 11. The opposite end of the shaft 14 nds a bearing in the slotted guideway of the angular bracket 16, secured to the bed of the machine.

Keyed to the shaft 4 at a suitable distance from one of the pinions 6 is a gear-wheel 17, which meshes with a pinion 18, carried at one end of a short shaft 19, mounted in a suitable bearing 20 at the bottom of the bed 1, the opposite end of said shaft 19 carrying a sprocketwheel 21, operating a chain 22, passing over the terminal sprocket-wheel 23 at one end of the shaft 24 of the middle broom 25. One end of the shaft 24 is held in the slotted guideway of the supporting-arm 27, depending from the bed, and the opposite end, orv that carrying the sprocket-wheel 24, is loosely embraced by one end of an arm 15', whose opposite end loosely embraces and is carried by the shaft 19. This manner of mounting the brooms and disposing the gearing driving the same is well known and is not herein claimed.

Passing through the bed of the frame, and extending a suitable distance above the surface of said bed, is a vertical shaft 28, whose lower end carries a bevel gear-wheel 29, meshing with a bevel gear-wheel 30, keyed approximately at the medial portion of the driveshaft, the upper end of said vertical shaft having a bearing in the end of'a bracket 31, mounted'on top of the bed and carrying a sprocket-wheel 32, over which passes a chain 33, which also passes over a sprocket-wheel 34 at the upper end of an operating-shaft 35, whose upper terminal has a'bearing in the U shaped bracket 36, andwhose lower terminal is connected by means-of a universal joint 37 to the upper end of the inclined shaftv 38, having a bearing at the base of the inclined frame or casting 39, depending from the bed, and adapted also to furnish proper bearing Ioo versal joints, as best seen in Fig. 6.

for the shaft 35. The parts are protected by a correspondiugly-inclined hollow cylinder or tube 40. The lower screw-threaded end of the shaft 38 has adjustably secured thereto an inclined dish-shaped dirt-receiver 4l, adapted to revolve with the shaft, and which during its rotation is additionally steadied and guided by the central hollow tubular extension or hub 42, revolving within the lower open end of the tube 40. Rigidly secured to the tube 40 and iu contact with the revolving dirt-receiver 4l is a scraping-arm 43, having a rear convex face 43', whose inner end is substantially tangent to the circle defining the periphery of the tube 40. The outer end of the arm 43 terminates approximately at the edge of the dirt-receiver.

larried by the drive-shaft 4, intermediate the gear 17 and the bevel-pinion 6, is a pinion 44, which meshes with a gear-wheel 45 of a shaft 46, mounted in a suitable bearing on top of the bed, one end of the shaft carrying a sprocket-wheel 47, which, through the medium ofl a chain 4S, drives a corresponding sprocket-wheel 49, forming part of a drum 50, mounted between suitable supporting-arms 5l 52. A second drum 53 is supportedbetween depending arms 54, carried by the bed in proximity to the scraping-arm 43, and between the drums and 53 are adapted to be driven an inclined series of buckets 55, of any approved construction, the upper end of the series of conveyer-buckets being situated directly over a receptacle 56, having a hinged bottom 57.

The arrows in the drawings indicate the relative direction of motion of the several operating parts while the machine is drawn forward over the surface to be swept. From these arrows it is apparent that as the several brooms sweep the dirt onto the receiver 4l the latter will revolve, as indicated, the dirt being scraped by and accumulated in fron-t of the convex face of the scraping-arm 43, whence it will gradually be impelled toward the periphery of the receiver along said convex surface of the scraping-arm, and finally be deposited into the travel-ing buckets and by them dropped into the receptacle 56, whence it can be removed or dumped into any cart used in the hauling of dirt. By means of the nuts G0 the position of the receiver 4l can be carefully adjusted along the revolving shaft 3S, by which the receiver is impelled. A shield 6l is secured in front of the several parts, whereby the dirt is intercepted properly as it leaves the brooms and is prevented from scattering beyond the limits of the dirt-receiver.

Instead of having the brooms driven independently, it is obvious that only the terminal inclined brooms of the series might be provided with driving mechanism, the middle broom being driven simultaneously with the sidebrooms by coupling the series with uni- A joint such as that just referred to would be coml. In a street-sweeper, a suitable frame or bed, suitable drivin g-wheels, a series of revolving brooms or brushes, a rotating dirtreceiver depending from the bed and having a depositing-surface located in proximity t0 the brushes, suitable gearing between the several parts for operating the same simnltaneously,` and a scrapin-g device cooperating with the depositingsurface of the receiver for removing the dirt therefrom, substantially as set forth.

2. In a street-sweeper, a suitable bed, driving-wheels for the same, a series of rotary brushes depending from the bed, an inclined rotatable dirt-receiver of dishshape'd construction loeated in proximity to the brushes` and adapted to receive the dirt swept by the same, a scraping-arm coperatin g with the receivin g-surface of the dirt-receiver, a suitable conveyer for taking up the dirt from the receiver, and suitable gearing for operating the several parts, substantially asset forth.

3. In a street-sweeper, a suitable bed or frame, drivin g-wheels for the same, a suitable rotating cup-shaped dirt-receiver, a scrapingarm for the same, a series of revolving brushes disposed about the periphery of the receiver for sweeping dirt thereinto, and suitable gearing between the several partsv for operating the same simultaneously, substantially asset forth..

4. In a street-sweeper, a suitable bed or' frame, a suitable cup-shaped revolving dirtreceiver, a series of revolving brooms or brushes disposed about the periphery of the same for sweeping dirt thereinto, a scraping` arm for the receiver, a bucket-conveyer having its lower end in proximity tothe periphery of the receiver and the free end of the scraping-arm, a box or receptacle at the up per end of the conveyer, a hinged bottom for said box or receptacle, driving-wheels and suitable gearing for operating the several parts simultaneously, substantially as set forth.

5. ln a street-sweeper, a suitable bed, a vertical operatinff-shaft mounted therein, an inclined shaft depending from said vertical shaft, a universal joint between the two shafts, an inclined frame depending from 'the bed and forming a bearing for the inclined shaft, a hollow tube or cylinder surrounding the frame, a circular dirt-receiver carried at the lower end of the inclined shaft, a tubular or hub portion forming a part of the receiver and confined within and guided by the inner ICO walls of the lower end of the tube or cylinder, a scraping-arm for the receiver carried by the tube and extending radially along the receivinglsurface of the receiver, one face of the arm being outwardly convex and being substantially tangent to the periphery of the tube, and a suitable series of revolving brushes in proximity to the periphery of the dirt-receiver, substantially as set forth.

6. In a street-sweeper, abed plate or frame, driving-wheels for the same, a suitable inclined revolving dirt receiver, a series of brushes in proximity thereto for sweeping dirt thereinto, means for removing the dirt from said receiver, suitable gearing for operating the Several parts, and a stationary shield in front of the receiver, substantially as set forth.

In testimony whereof we aiiiX our signatures in presence of two Witnesses.

oTTo GosoHEL. BENJAMIN SUTTER.

Witnesses ALFRED A. MATHEY, EMIL STAREK. 

